Map of all FM, MW and LW transmitters

You can click on a transmitter group symbol to see all the masts in that county or area, or click on a single transmitter to see the coverage area. Due to the large number of radio transmitters, many have been grouped into counties or administrative areas for ease of viewing.

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What do the map symbols mean?

FM/AM radio mast, Transmitter group.

Comments

Saturday, 6 September 2014

M

MB5:16 PM

Luca: This is not unusual. After dark, the ionosphere's D layer dissipates. This layer normally absorbs MW signals meaning that the only go a few miles. Without this layer, at night, the signals can reach the F layers higher in the atmosphere, and hence be refracted back to earth many hundreds to thousands of miles distant. Tune around MW or LW after dark and you will find many stations from other countries that are not receivable during the day. This is a common cause of interference on MW

The effect that MB is describing is well known to listeners to Radio Luxembourg on 208 metres. That always faded in and out due to the atmospherics effect, more noticable in the evenings as the ionosphere layers change height as the atmosphere cools.

DAB in car aerial tweak. I kept the magnetic aerial on the parcel shelf, as putting it on the roof made no improvement here on the Isle of Thanet, Kent. Always lost signal at the most interesting bit. However I now keep it on the inside of a round metal flan dish in the same place on the parcel shelf, and very rarely have any dropouts. Result!

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